| 摘要 |
PURPOSE: A device for internal coating for steel pipe is provided to prevent the adhesion of paint during the spraying process of polyurethane resin paint, thereby improving the quality of a film remarkably. CONSTITUTION: A device for internal coating for steel pipe comprises a coating injection nozzle(230) for the painting of polyurethane, and an atomized particle collecting member(300). The coating injection nozzle is included in the edge of a coating gun. The coating device is installed in a elevating unit part for elevating to motor in order to control height. The elevating unit part comprises a moving means. The moving means moves along a moving cart. The atomized particle collecting member collects paint, which is atomized during the spraying process of the coating injection nozzle, and separates the same.
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